Capture of power quality information at the time a device fails

摘要

An apparatus for detecting an abnormal event and capturing associated waveforms includes a detection module within a power control device that detects an abnormal condition. The abnormal condition is indicative of an impending failure of the power control device and/or a condition within the power control device indicative of a parameter being outside of a specified limit. The power control device controls power to one or more power devices in a power distribution system. The apparatus includes a signal transmit module that transmits a capture signal to a transient capture meter. The transient capture meter meters transient conditions of a branch of the power distribution system that includes the power control device. The capture signal instructs the transient capture meter to capture current and/or voltage waveforms relevant to a time when the detection module detected the abnormal condition.

主权项

1. An apparatus comprising:
a detection module within a power control device that detects an abnormal condition, the abnormal condition indicative of one or more of
an impending failure of the power control device; anda condition within the power control device indicative of a parameter being outside of a specified limit,  wherein the power control device controls power to one or more power devices in a power distribution system; and a signal transmit module that transmits a capture signal to a transient capture meter, the transient capture meter metering transient conditions of a branch of the power distribution system comprising the power control device, wherein the capture signal instructs the transient capture meter to capture one or more of current and voltage waveforms relevant to a time when the detection module detected the abnormal condition.